Tobacco pipe bowl



Seplt. 8, 1953 R.o. FERGUSON 2,651f307 TOBACCO PIPE BowL Filed Aug. 25,194? A INVENTGR BY/mww ATTORNEW .vn ly.. A(

Patented Sept. 8, 1953 TOBACCO PIPE BOWL Robert 0. Ferguson, Bristol,Tenn., assignor of one-half to Bristol Steel & Iron rWorks, Inc.,Bristol, 'Va-Tenn., a corporation of Virginia; James R. Ferguson,administrator of said Robert 0. Ferguson, deceased Application August25, 1947, Serial No. 770,444

2 Claims. l

This invention relates to a bowl for a. tobacco pipe, and isparticularly concerned with means for Ventilating and cooling the bowl.

An object of the invention is to provide a. pipe bowl constructed toprovide maximum cooling qualities for the bowl.

A further object of the invention is to provide cooling means for a pipebowl, which cooling means provides maximum cooling adjacent the base ofthe bowl.

An additional object of the invention is to provide a pipe bowl having aplurality of passageways which cross each other to thereby provide crossventilation of a pipe bowl.

Other objects will appear hereinafter throughout the specification.

In the drawings:

Figure 1 is a vertical sectional view of one form of the tobacco pipebowl;

Figure 2 is a horizontal section taken on the line 2 2 of Figure 3;

Figure 3 is a side elevation of the bowl shown in Figures 1 and 2;

Figure 4 is a side elevation of a modication of the pipe bowl;

Figure 5 is a, horizontal sectional view taken on the line 5 5 of thestructure shown in Figure 4; and

Figure 6 is a vertical sectional view of the pipe bowl shown in Figures4 and 5.

It isa tendency of la large number of pipe smokers to smoke too fast,thus causing the pipe bowl to heat up and cause burning of the wood orother material of which the pipe bowl is constructed. Many expensivepipe bowls are thus ruined by this overheating and consequent burning ofthe bowl.

The present invention, in its several forms, entirely overcomes thisdefect of pipe bowls, because the pipe bowl is adapted to becontinuously cooled by currents of air of the convection type to causethe bowl to be cooled as the tobacco in it is smoked. In accordance withFunk & Wagnalls New Comprehensive Dictionaryy 1944 edition, the wordconvection means transference as by heat. The passageways hereinafterdescribed are adapted to receive air for cooling the pipe bowl.

In the drawing Figure l discloses a typical structural example of howthis problem is solved by the present invention.

In this gure, A represents the pipe bowl as a whole, the tobacco chamberbeing indicated by the numeral I. The side wall surrounding this chamberis indicated at 2, and there is a (Cl. ISI-195) 2 bottom 3 having acircular edge 4. The bottom ofthe bowl is provided with a threadedextension 5 forming an outer rim portion of the plug l. In the lower endof the chamber I is a smoke passageway 6 connected to a circular groove8.

In order to provide a cooling means for the pipe, the lower end of thebowl is provided with a plurality of passageways 9 having entrances oropenings I0. There are other passageways I I which are parallel to eachother and which are transverse to the passageways 9. These passageways II have openings I2. Each of the above noted passageways is adapted toprovide cross ventilation.

Between adjacent openings I0 and I 2 corner portions I3 are provided, asindicated in Figure 2.

Preferably the screw thread 5 has a lower abrupt terminating point I4.When the pipe bowl is screwed into the base, such ias the lower bowlsection as indicated in my copending application, Serial No. 770,443,led August 25, 1947, now Patent No. 2,548,297, granted April 10, 1951,any specks of tobacco which have attached themselves to the screwthreads of the lower bowl are pushed -circumferentially around thesethreads and caused to fall into the lower bowl.

In Figures 4, 5 and 6 the bowl F has a tobacco chamber with a smokepassage 60'. Extending on opposite sides of the bowl are otherpassageways 6I which are parallel to each other. Transverse to thesepassageways and also extending on opposite sides are passageways 62which are transverse to passageways 6I. These pairs of passagewayscompletely surround the tobacco chamber 6|). Additionally between eachpair of passageways 60 and each pair of passageways 62 are shortconnecting radially directed passageways 63, as shown in Figure 5.

It will be understood that the pipe bowls shown herein may be suitablyattached to a lower bowl section, and as shown in my copendingapplication, Serial No. 770,443, led August 25, 1947, now Patent No.2,548,297, granted April 10, 1951, are attached by screw threads, orotherwise.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

l. In a smoking pipe having an upper bowl portion and a lower bowlportion provided with a smoke cooling and filtering chamber and adaptedto be detachably secured to said upper bowl portion, comprising a base,a tobacco chamber above said base, a smoke passageway in said baseextending downwardly from said tobacco chamber and adapted tocommunicate with said chamber of the lower portion when said portionsare secured and means adapted to cool said pipe, said means including apair of parallel substantially horizontal passageways extending throughsaid upper portion and having openings on substantially opposite sidesthereof, and a second pair of parallel substantially horizontalpassageways extending through said upper portion and at right angles tosaid first-named pair of passageways and having openings onsubstantially opposite sides of said upper portion.

2. In a smoking pipe having an upper bowl portion and a lower bowlportion provided with a smoke cooling and ltering chamber and adapted tobe detachably secured to said upper bowl portion, comprising a base, atobacco chamber above ,Y

said base, a smoke passageway in said base extending downwardly fromsaid tobacco chamber and adapted to communicate with said chamber of thelower portion when said portions are secured, and means adapted to coolsaid pipe, said means including a pair of parallel substantiallyhorizontal passageways extending through said upper portion and havingopenings on substantially opposite sides thereof, and a second pair ofparallel substantially horizontal passageways extending through saidupper portion and at '4 right angles to said first-named pair ofpassageways and having openings on substantially opposite sides of saidupper portion, all of said passageways being in the same plane andextending in directions which are transverse to the central verticalaxis of said upper portion, said passageways being positioned in thebase of said upper portion beneath said tobacco chamber and outwardly ofsaid smoke passageway whereby cross ventilation means for said upperbowl is provided.

ROBERT O. FERGUSON,

References Cited in the le of this patent UNTTED STATES PATENTS NumberName Date 1,659,287 Whitney Feb. 14, 1928 1,664,117 Kratochvil Mar. 27,1928 1,780,886 Copithorn Nov. 4, 1930 1,884,612 Dinzl Oct. 25, 1932FOREIGN PATENTS Number Country Date 9,535 Great Britain 1906 248,727Great Britain Aug. 5, 1926 462,743 Great Britain June 11, 1935 465,009Great Britain Apr. 29, 1937 aL- sur.

